Computer Science for IGCSE & O level - Data Representation (Section 17 - No. 14)
What is the purpose of the leftmost bit in a two's complement representation of a number?
Represents the most significant digit.
Represents the sign of the number.
Is always set to 1.
Represents the least significant digit.
Shpjegimi
The leftmost bit indicates whether the number is positive or negative.